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13057383 = 34352461
BaseRepresentation
bin110001110011…
…110101100111
3220120101100210
4301303311213
511320314013
61143510503
7215662113
oct61636547
926511323
1013057383
117409229
124458433
132922381
141a3c743
15122dcc3
hexc73d67

13057383 has 4 divisors (see below), whose sum is σ = 17409848. Its totient is φ = 8704920.

The previous prime is 13057379. The next prime is 13057403. The reversal of 13057383 is 38375031.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13057383 - 22 = 13057379 is a prime.

It is the 3614-th Hogben number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13057383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13057183) by changing a digit.

It is a nontrivial repunit in base 3613.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2176228 + ... + 2176233.

It is an arithmetic number, because the mean of its divisors is an integer number (4352462).

Almost surely, 213057383 is an apocalyptic number.

13057383 is a deficient number, since it is larger than the sum of its proper divisors (4352465).

13057383 is an equidigital number, since it uses as much as digits as its factorization.

13057383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4352464.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 13057383 is about 3613.5001037775. The cubic root of 13057383 is about 235.4789267164.

The spelling of 13057383 in words is "thirteen million, fifty-seven thousand, three hundred eighty-three".

Divisors: 1 3 4352461 13057383